Examples with J9ObjectPointer com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer used on opensource projects

Example 46 with J9ObjectPointer

use of com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer in project openj9 by eclipse.

the class GCHeapMap method getSlotIndexAndMask.

/**
 * Return the index into the heap map bits array and the bitmask to use.
 * @param object
 * @return an array containing the slot index and bit mask
 */
public UDATA[] getSlotIndexAndMask(J9ObjectPointer object) {
    UDATA heapBaseOffset = UDATA.cast(object).sub(UDATA.cast(_heapBase));
    if (heapBaseOffset.gte(_maxOffset)) {
        throw new IllegalArgumentException("Object is not in heap: " + object);
    }
    UDATA bitIndex = heapBaseOffset.bitAnd(_heapMapBitMask);
    bitIndex = bitIndex.rightShift(_heapMapBitShift);
    UDATA bitMask = new UDATA(1).leftShift(bitIndex);
    UDATA slotIndex = heapBaseOffset.rightShift(new UDATA(_heapMapIndexShift));
    UDATA[] result = new UDATA[2];
    result[0] = slotIndex;
    result[1] = bitMask;
    return result;
}

Example 47 with J9ObjectPointer

use of com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer in project openj9 by eclipse.

the class GCUnfinalizedObjectListIterator method next.

public J9ObjectPointer next() {
    if (hasNext()) {
        J9ObjectPointer tmp = next;
        next = null;
        return tmp;
    } else {
        throw new NoSuchElementException("There are no more items available through this iterator");
    }
}

Example 48 with J9ObjectPointer

use of com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer in project openj9 by eclipse.

the class GCOwnableSynchronizerObjectListIterator method next.

public J9ObjectPointer next() {
    if (hasNext()) {
        J9ObjectPointer tmp = next;
        next = null;
        return tmp;
    } else {
        throw new NoSuchElementException("There are no more items available through this iterator");
    }
}

Example 49 with J9ObjectPointer

use of com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer in project openj9 by eclipse.

the class GCObjectHeapIteratorMarkMapIterator_V1 method next.

@Override
public J9ObjectPointer next() {
    if (hasNext()) {
        J9ObjectPointer next;
        if (null == _nextObject) {
            nextImpl();
        }
        next = _nextObject;
        _nextObject = null;
        if (null != next) {
            return next;
        }
    }
    throw new NoSuchElementException("No more objects");
}

Example 50 with J9ObjectPointer

use of com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer in project openj9 by eclipse.

the class GCObjectHeapIteratorMarkMapIterator_V1 method peek.

@Override
public J9ObjectPointer peek() {
    if (hasNext()) {
        J9ObjectPointer next;
        if (null == _nextObject) {
            nextImpl();
        }
        next = _nextObject;
        if (null != next) {
            return next;
        }
    }
    throw new NoSuchElementException("No more objects");
}